/* Reset & Base */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    padding: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Lato, Helvetica, Arial, sans-serif;
    background-color: #f8f9fa;
    color: #202122;
    font-size: 16px;
    /* Vector 2022 uses slightly larger font */
    line-height: 1.6;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

a {
    color: #3366cc;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

a:visited {
    color: #3366cc;
    /* Wikipedia links often stay blue or turn purple, but for this clone we keep it clean */
}

/* Header */
header {
    background-color: #ffffff;
    border-bottom: 1px solid #a2a9b1;
    display: flex;
    align-items: center;
    padding: 0 20px;
    height: 60px;
    position: sticky;
    top: 0;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    margin-right: 20px;
}

.logo img {
    height: 50px;
    margin-right: 10px;
}

.logo-text {
    font-family: 'Linux Libertine', 'Georgia', 'Times', serif;
    font-size: 1.3rem;
    line-height: 1;
}

.logo-text small {
    display: block;
    font-size: 0.7rem;
    margin-top: 2px;
}

.search-container {
    flex-grow: 1;
    max-width: 500px;
    margin: 0 20px;
    display: flex;
}

.search-input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid #a2a9b1;
    border-radius: 2px;
    font-size: 14px;
}

.search-button {
    background: #f8f9fa;
    border: 1px solid #a2a9b1;
    border-left: none;
    padding: 8px 16px;
    cursor: pointer;
    font-weight: bold;
}

.user-links {
    margin-left: auto;
    font-size: 0.85rem;
    display: flex;
    gap: 15px;
}

/* Layout */
.main-container {
    display: flex;
    flex: 1;
    max-width: 100%;
}

/* Sidebar */
.sidebar {
    width: 176px;
    /* Classic width, Vector 2022 can be collapsible but we'll stick to fixed for simplicity */
    padding: 20px 0 20px 20px;
    background-color: #f8f9fa;
    font-size: 0.85rem;
    flex-shrink: 0;
    border-right: 1px solid #e5e5e5;
    /* Optional separator */
}

.sidebar-section {
    margin-bottom: 20px;
}

.sidebar-section h3 {
    font-size: 0.75rem;
    color: #54595d;
    text-transform: uppercase;
    margin: 0 0 10px 0;
    font-weight: normal;
    padding-bottom: 5px;
    border-bottom: 1px solid #c8ccd1;
}

.sidebar-section ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.sidebar-section li {
    margin-bottom: 5px;
}

.sidebar-section a {
    color: #202122;
}

/* Content */
.content {
    flex-grow: 1;
    background-color: #ffffff;
    padding: 20px 40px;
    max-width: 960px;
    /* Readability limit */
    margin: 0 auto;
    /* Center content if screen is huge */
    border: 1px solid #a2a9b1;
    border-top: none;
    border-bottom: none;
}

h1 {
    font-family: 'Linux Libertine', 'Georgia', 'Times', serif;
    font-size: 1.8rem;
    border-bottom: 1px solid #a2a9b1;
    padding-bottom: 5px;
    margin-top: 0;
    font-weight: normal;
}

.site-sub {
    font-size: 0.8rem;
    color: #54595d;
    margin-bottom: 15px;
}

h2 {
    font-family: 'Linux Libertine', 'Georgia', 'Times', serif;
    font-size: 1.5rem;
    border-bottom: 1px solid #a2a9b1;
    padding-bottom: 5px;
    margin-top: 30px;
    font-weight: normal;
}

h3 {
    font-family: 'Linux Libertine', 'Georgia', 'Times', serif;
    font-size: 1.2rem;
    font-weight: bold;
    margin-top: 20px;
    margin-bottom: 10px;
    padding-bottom: 0;
}

p {
    margin-bottom: 15px;
    text-align: justify;
}

/* Infobox */
.infobox {
    float: right;
    clear: right;
    width: 300px;
    background-color: #f8f9fa;
    border: 1px solid #a2a9b1;
    padding: 5px;
    margin: 0 0 20px 20px;
    font-size: 0.9rem;
    line-height: 1.4;
}

.infobox-title {
    background-color: #b0c4de;
    /* Typical biology color */
    text-align: center;
    font-weight: bold;
    padding: 5px;
    margin: -5px -5px 10px -5px;
}

.infobox-image {
    text-align: center;
    margin-bottom: 10px;
}

.infobox-image img {
    max-width: 100%;
    height: auto;
}

.infobox-caption {
    font-size: 0.8rem;
    text-align: center;
    margin-bottom: 10px;
}

.infobox table {
    width: 100%;
    border-collapse: collapse;
}

.infobox th,
.infobox td {
    padding: 4px;
    text-align: left;
    vertical-align: top;
}

.infobox th {
    font-weight: bold;
    width: 40%;
}

/* Footer */
footer {
    background-color: #f8f9fa;
    padding: 20px;
    font-size: 0.8rem;
    color: #202122;
    border-top: 1px solid #a2a9b1;
    margin-top: auto;
}

.footer-links {
    list-style: none;
    padding: 0;
    display: flex;
    gap: 15px;
    margin-bottom: 10px;
}

.footer-info {
    margin-bottom: 10px;
}

/* Utility */
.warning-banner {
    background-color: #ffdbdb;
    border: 1px solid #ffbbbb;
    padding: 10px;
    margin-bottom: 20px;
    text-align: center;
    font-weight: bold;
    color: #8b0000;
}

/* Responsive */
@media (max-width: 768px) {
    .main-container {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid #e5e5e5;
        padding: 10px;
    }

    .infobox {
        float: none;
        width: 100%;
        margin: 20px 0;
    }

    .content {
        padding: 20px;
        border: none;
    }
}